2288730 has 64 divisors (see below), whose sum is σ = 5971968. Its totient is φ = 559680.

The previous prime is 2288723. The next prime is 2288731. The reversal of 2288730 is 378822.

2288730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2288730 is a nontrivial binomial coefficient, being equal to C(2140, 2).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21337 + ... + 21443.

It is an arithmetic number, because the mean of its divisors is an integer number (93312).

2^2288730 is an apocalyptic number.

2288730 is the 2139-th triangular number and also the 1070-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2288730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2985984).

2288730 is an abundant number, since it is smaller than the sum of its proper divisors (3683238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2288730 is a wasteful number, since it uses less digits than its factorization.

2288730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2288730 is about 1512.8549170360. The cubic root of 2288730 is about 131.7846580696.

The spelling of 2288730 in words is "two million, two hundred eighty-eight thousand, seven hundred thirty".